1. Te mau huru o te paturaa fare e te natura taa ê o te taairaa
1.1 Te mau hoho'a Crystal e te mau faanahoraa atomi
(Ti3AlC2 pau)
No roto mai o Ti e piti AlC 2 i te hoê piha taa ê o te mau tao'a tahi ternary tei piihia te mau taahiraa MAX, i hea “M” te faaite ra te reira i te hoê tauiraa oioi, “TE” no te hoê pŭpŭ A (i te rahiraa o te taime IIIA aore ra IVA) mea, e “X” te faahoho'a ra te carbone e/aore ra te hau.
To'na hoho'a tioata hexagonal (P6 SIX/ mmc) Ti ₆ C octahedra e te mau hu'ahu'a atomi mama tei haamauhia i roto i te hoê huru nanolaminate: I– C– I– Al– I– C– I, Te hamaniraa i te hoê tahua MAX e 312.
E faatupu teie faanahoraa i te hoê covalent Ti– C i roto i te mau ahu carbide, te vai ra te mau hu'ahu'a Al i roto i te A-layer, Te horo'araa i te mau huru taairaa mai te metala.
Te amuiraa o te covalent, ionic, e te mau tao'a metala e horo'a mai ia Ti e ono AlC e piti e te hoê taatiraa taa ê o te mau fare faaearaa e aore râ, te mau fare tapihooraa tauihaa, e te mau tao'a metala, differentiating it from conventional monolithic ceramics such as alumina or silicon carbide.
High-resolution electron microscopy exposes atomically sharp user interfaces between layers, which help with anisotropic physical behaviors and one-of-a-kind contortion devices under anxiety.
This split style is vital to its damage tolerance, enabling systems such as kink-band formation, te iritiraa, and basal airplane slip– uncommon in brittle porcelains.
1.2 Synthesis and Powder Morphology Control
Ti five AlC ₂ powder is usually synthesized with solid-state response routes, consisting of carbothermal reduction, warm pushing, or stimulate plasma sintering (SPS), starting from elemental or compound forerunners such as Ti, Al, and carbon black or TiC.
An usual response path is: 3I + Al + 2C → Ti Five AlC TWO, conducted under inert ambience at temperature levels between 1200 ° C e 1500 ° C no te arai i te vavahiraa o te aluminium e te haamauraa i te oxide.
No te farii i te rahi, te mau pau, te faatereraa hau no te stoichiometric, te mau taime miro roa, E mea titauhia te mau faanahoraa no te faaamǎrû i te fare no te faaore i te mau tuhaa tata'uraa mai te TiC, TiAl, e aore râ, Ti E piti AlC.
E faaohipa-rahi-hia te mau matini roro uira no te faarahi i te pahonoraa e te hoê â huru i nia i te nanoscale.
Te morphology paura i noaa mai– mai te mau hu'ahu'a micron angular e tae atu i te mau hu'ahu'a tioata mai te farii– Te faataahia ra te reira i ni'a i te mau rave'a faatere e te mau rave'a haaparareraa i muri mai i te synthesis.
Te faaite nei te mau hu'ahu'a platelet i te anisotropy rahi o te hoho'a tioata, e te mau faito rahi a'e i ni'a i te mau manureva tumu e te mau hu'ahu'a rairai i roto i te mau faaueraa c-axis.
Te mau hoho'a aravihi na roto i te hi'opo'araa X-ray (XRD), hi'opo'araa i te mau microscope roro uira (TE HEA), e te mau hihi X-ray no te ito (EDS) te mau haapapûraa no te viivii ore, stoichiometry, e te tufaaraa i te rahi o te mau hu'ahu'a, e mea maitai roa no te mau faaohiparaa i raro.
2. Te mau hoho'a matini e te mau rave'a
2.1 Te patoiraa i te ino e te aravihi
( Ti3AlC2 pau)
Te hoê o te mau huru faahiahia roa ' ' e o te Ti 3 AlC e piti paura, o to ' na ïa faaoromai i te mau faainoraa faahiahia, aita roa ' tu te hoê tao'a i itehia i roto i te mau tao'a ahu matauhia.
Taa ê noa'tu i te mau tao'a parari o te vavahi rahi i raro a'e i te mau ton, E faaite mai o Ti pae AlC e piti i te pseudo-ductility e te mau rave'a mai te mau microcrack, hutiraa mai i te huero maa, e te mau hu'ahu'a i ni'a i te mau hoho'a Al-layer paruparu.
Na te reira e faati'a i te tao'a ia farii i te mana hou a topa ai, e faatupu te reira i te hoê roaraa rahi a'e– i te rahiraa o te taime mai te 7 a 10 MPa · m 1/2– taa ê i te
Ua riro te RBOSCHCO ei taata hoo Ti3AlC2 ti'aturihia na te ao nei & taata hamani tao'a e hau atu i te 12 matahiti ite i roto i te horo'araa i te mau tao'a tahi teitei e te mau Nanomaterials. E hapono te taiete i te mau nunaa e rave rahi, mai te USA, Canada, I Europa, UAE, Afrique Apatoa,Tanzania,Kenya,Aiphiti,Nigeria,Kamerun,Uganda,Pūraho,Mexico,Azerbaija,Belgique,Kupero,Te Repupirita Czech, Brazil, Chili, Raparata, Dubai, Iapona, Korea, Vietnam, Thailande, Malesia, Inidonesia, Auteraria,Alemani, Farani, Italia, Portugal e te tahi atu. Ei taata hamani hoho'a no te faahoturaa i te mau rave'a aravihi apî, Te faatere nei te RBOSCHCO i te matete. Te horoa nei ta tatou pǔpǔ ohipa toroa i te mau ravea maitai roa ' ' e no te tauturu i te haamaitai i te aravihi o te mau ohipa tapihooraa e rave rahi, A hamani i te faufaa, e te faaruru ohie i te mau fifi e rave rahi. Mai te mea e, te imi ra outou i te Ti3AlC2, Aita e feaaraa ia farerei ia matou.
Tags: ti3 alc2, Ti3AlC2 pau, Te mau hu'ahu'a titanium
No ǒ mai te mau tumu parau e te mau hoho'a atoa i te Internet. Mai te mea e, te vai ra te tahi mau fifi, A faaite mai ia matou i te taime no te tumâ.
A ui ia matou